Oil-gas-fuel generator



(Nomodel.) f

` R. & E. W. BARLOW.

OIL GAS FUEL GENERATOR. No. 546,375. Patented Sept. 17,1895.

N DRM 8.6 RAnAM PHOTO-Unio. WASH |610 Dit ROBERT BARLOW AND EDVARD W. BARLOW, OF CHICAGO, ILLINOIS.

OlL-GAS-FUEL GENERATOR.

SPECIFICATION forming part of Letters Patent No. 546,375, dated September 1'7, 1895.

Application tiled April 25, 1895. lSerial No. 547,107. (No model.)

To @ZZ whom it may concern:

Be it known that We, ROBERT BARLOW and EDWARD W. BARLOW, citizens ofthe United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Oil- Gas-Fuel Generators, (Oase No. 1,) of which the following is at'ull, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specication.

Our invention relates to an oil-gas-fuel generator as applied more particularly to a furnace of the regenerative type, the object of our invention being to provide means Whereby heat may be applied to the mixed oil and steam to gasify the same before coming in contact with the checker-work, and our invention contemplates the use of the Waste heat of the products of combustion for this purpose.

In accordance with our invention We provide one or more retorts which may extend into the dues leading from the gas-chamber, whereby the retorts absorb heat from the products of combustion as the products pass through the tiue. The mixed oil and steam is passed through the retorts and absorbs heat, whereby the mixture is highly heated or gasitied. We provide one or more of the gasretorts in each of the iiues leading from the two gas-chambers of the regenerative type of furnace,- the oil and steam being adapted to continuously traverse all of the retorts, while a valve is provided adapted to direct the mix` ture after passing through the retorts into either of the gas-chambers, according as the run is being made in one direction or thc other.

Referring to the accompanying drawings, Figure 1 is asectional view of a regenerative furnace embodying our invention. Fig. 2 is a sectional view of a portion of the furnace, the retorts and connectingpipes being shown in plan. Fig. 3 is a partial sectional view of a portion of the furnace, showing the retorts and connecting-pipes in elevation.

Like letters refer to like parts in the several figures.

Ve have illustrated our invention in connection with the usual form of regenerative furnace, in which a central hearth c is provided, communicating With which, upon opposite sides, are gas-chambers b h', filled with checker-work h2 b3, the gas-chamber b being in communication with a flue b, which may be connected with the smoke-stack or which may be sealed, the usual butteriy valve being provided for this purpose. Likewise the chamber b is connected with a flue h5, which may be sealed or connected with the smoke-stack. Upon either side of thehearth a are also provided hot-air chambers c c', filled, respectively with checker-work c2 c3, the chamber c being in A communication with the flue c", which, through the agency of a valve, may be connected with the external air or with the smoke-stack. Likewise the chamber c communicates With the fine c5, which may be connected with either the smokestack or the external air. Retorts d d c e are supported in the upper Wall h6 of each of the fines b4 h5, leading from the gas-chambers, the ends of the retorts projecting into the due, whereby the products ot' combustion passing through the flue may come in contact with the retorts and impart heat thereto. Within the flues Zi b5, and situated, preferably, beneath the retorts, are provided the coiled pipes or superheatersfandf, through which steam is adapted to be passed, the steam being thus superheated. The ends of the coils are connected by pipes f2 f3, respectively, with the steam! supply pipe f4. The opposite ends of the coils are connected by pipes gg', respectively, with a pipe or mixing-chamber h, into which extends the oil-pipe 7L', which is connected with an oilsupply. The pipe h is connected by pipes 1I t" with the retorts d and e, respectively, the pipes communicating with holes provided in the covers ot' the retorts. The retorts d and e are joined with the retorts d and e', respectively, by means of the pipes 7.: 7c'. Pipes Z Z extend from the retorts cl e to a common pipe Z2, which is connected with a valve m, provided With a valve stem or handle Im', the valve being connected by pipes o o with the gas-burners p p', which extend through the Walls of the gas-chambers b b and are adapted to direct oil or steam against the checker-work Within the gaschambers. The steam entering by the pipe]p4 passes by means of pipes fzf3 to the coilsff, in passing through which the steam becomes super- ICO heated, the steam then passing by pipes g g to the mixing-chamber h, where the steam mingles with the oil introduced by the pipe h. The mixed oil and steam divides and passes by means of pipes z' t" to the retorts CZ c,

the jet of admired oil and steam being directed vertically downward as it enters the retorts, striking the curved or spherical bottom ofthe retorts and being deflected upward,

1o the mixture then passing by means of pipes 7c 7a to and through the retorts d c', the mixture absorbing heat during the passage through the retorts and becoming more or less gasitied. The mixture then passes by means of pipes Z Z to the valve m, and is directed through the pipe o or through the pipe o', ac` cording as the valve is turned to permit flow in one direction or the other. The mixture is thus continuously passing th rough the retorts zo of both dues, while the fuel may be supplied to either one or the other ot the gas-chambers,

as may be desired, through the agency of the valve m. Thile a run is being made inone direction the flue c4 is open to the external air z5 while the due b4 is sealed, mixed steam and oil being supplied to tne chamber b where it comes in contact with the highly-heated refractory material h2 and is converted into a gas, the gas then passinginto the hearth @,where it comes 3oV in contact with the heated airpassing through the checker-work in the chamber c. The products ot combustion pass from the hearth through the chambers Z1 and c', the tlues b5 f and c5 being at this time in com muication with the smoke-stack. The products of combustion passing through the due b5 thus come in contact with the retorts e e therein, the retorts thus becoming heated. The retorts CZ cl inthe flue b, which is sealed, absorb the heat 4o which has been stored in the flue by the previous gas-run. The retorts are thus continuously in contact with considerable heat. After a run of some twenty minutes or more the direction of the run is reversed, the tine c5 being thrown open tothe air, the due b5 being sealed, and the fines b4 c4 being connected with the smoke-stack, the mixed oil and steam being cut off from the chamber b and being directed to the chamber b through the agency 5o of the valve m. \Ve provide valves lr in the several pipes, so that the retorts upon one side may be cut oft while the others remain in active operation, it being thus possible to make changes or repairs Without shutting down the gas-run, means being thus afforded also for cleaning out the retorts by directing double the amount ot' steam through one ot the sets of retorts for a short period. XVe have illustrated the retorts as provided with spherical bottoms, the nletpipes being adapted to direct the jet of mixed steam and oil downward to impinge against the spherical end, whereby the oil and steam are diverted upward to readily Vpass out of the retort; but While this is a very desirable feature it istnot essential that the retorts be thus constructed.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. In a regenerative furnace, the combination with retorts situated in the fines leading from the gas chambers, of means for passing mixed oil and steam continuously through the retorts of both fines, pipes extending between said gas Vchambers and said retorts and a valve for directing the oil and steam issuing from the retorts into one or the other ot the gas chambers; substantially as described.

2. The combination with a super-heater situated in each of the ues leading from the gas chambers, of a steam pipe connected with said super-heaters at one end, a mixing chamber connected with the opposite ends ot said super-heaters, an oil pipe leading into said mixing chamber, retorts situated in said fines and connected with said mixing chamber, a valve connected Withsaid retorts and counecA tions between said valve and each of said chambers, whereby the eiland steam may be directed into eitherof said gas chambers at will, through the agency of said valve; substantially as described.

3. The combination with the super-heaters ff situated in the flues b4 b5, of the steam pipe f4, pipesfzf3 connecting said pipe f4 with the super-heaters, mixing chamber 7L, pipes g g connecting the super-heaters with said mirc ing chamber, oil pipe h', retorts d d and e e', pipes i e" connecting said mixing chamber with said retorts, valve m, pipes Z Z connecting said retorts with said valve, and pipes o o extending to the gas chambers; substantially as described.

In witness whereof we hereunto subscribe our names this 20th day of April, A. D. 1805.

ROBERT BARLOW. EDWARD W. BARLOW.

Witnesses:

JOHN W. SINGLAIR, W. CLYDE Jonas.

ICO 

